| /* |
| * @(#)$Id$ |
| * |
| * The Apache Software License, Version 1.1 |
| * |
| * |
| * Copyright (c) 2001 The Apache Software Foundation. All rights |
| * reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * |
| * 3. The end-user documentation included with the redistribution, |
| * if any, must include the following acknowledgment: |
| * "This product includes software developed by the |
| * Apache Software Foundation (http://www.apache.org/)." |
| * Alternately, this acknowledgment may appear in the software itself, |
| * if and wherever such third-party acknowledgments normally appear. |
| * |
| * 4. The names "Xalan" and "Apache Software Foundation" must |
| * not be used to endorse or promote products derived from this |
| * software without prior written permission. For written |
| * permission, please contact apache@apache.org. |
| * |
| * 5. Products derived from this software may not be called "Apache", |
| * nor may "Apache" appear in their name, without prior written |
| * permission of the Apache Software Foundation. |
| * |
| * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR |
| * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES{} LOSS OF |
| * USE, DATA, OR PROFITS{} OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
| * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| * ==================================================================== |
| * |
| * This software consists of voluntary contributions made by many |
| * individuals on behalf of the Apache Software Foundation and was |
| * originally based on software copyright (c) 2001, Sun |
| * Microsystems., http://www.sun.com. For more |
| * information on the Apache Software Foundation, please see |
| * <http://www.apache.org/>. |
| * |
| * @author Santiago Pericas-Geertsen |
| * @author G. Todd Miller |
| * |
| */ |
| |
| package org.apache.xalan.xsltc.runtime.output; |
| |
| import java.util.Stack; |
| import java.io.IOException; |
| import org.xml.sax.ContentHandler; |
| import org.xml.sax.ext.LexicalHandler; |
| import org.apache.xalan.xsltc.TransletException; |
| import org.apache.xalan.xsltc.runtime.Hashtable; |
| import org.xml.sax.SAXException; |
| import org.apache.xalan.xsltc.runtime.BasisLibrary; |
| |
| public class SAXXMLOutput extends SAXOutput { |
| |
| private static final char[] BEGCDATA = "<![CDATA[".toCharArray(); |
| private static final char[] ENDCDATA = "]]>".toCharArray(); |
| private static final char[] CNTCDATA = "]]]]><![CDATA[>".toCharArray(); |
| |
| public SAXXMLOutput(ContentHandler handler, String encoding) |
| throws IOException |
| { |
| super(handler, encoding); |
| initCDATA(); |
| initNamespaces(); |
| } |
| |
| public SAXXMLOutput(ContentHandler handler, LexicalHandler lex, |
| String encoding) throws IOException |
| { |
| super(handler, lex, encoding); |
| initCDATA(); |
| initNamespaces(); |
| } |
| |
| public void endDocument() throws TransletException { |
| try { |
| // Close any open start tag |
| if (_startTagOpen) { |
| closeStartTag(); |
| } |
| else if (_cdataTagOpen) { |
| closeCDATA(); |
| } |
| |
| // Close output document |
| _saxHandler.endDocument(); |
| } |
| catch (SAXException e) { |
| throw new TransletException(e); |
| } |
| } |
| |
| /** |
| * Start an element in the output document. This might be an XML |
| * element (<elem>data</elem> type) or a CDATA section. |
| */ |
| public void startElement(String elementName) throws TransletException { |
| // System.out.println("SAXXMLOutput.startElement name = " + elementName); |
| try { |
| // Close any open start tag |
| if (_startTagOpen) { |
| closeStartTag(); |
| } |
| else if (_cdataTagOpen) { |
| closeCDATA(); |
| } |
| |
| // Handle document type declaration (for first element only) |
| if (_firstElement) { |
| if (_doctypeSystem != null) { |
| _lexHandler.startDTD(elementName, _doctypePublic, |
| _doctypeSystem); |
| } |
| _firstElement = false; |
| } |
| |
| _depth++; |
| _elementName = elementName; |
| _attributes.clear(); |
| _startTagOpen = true; |
| } |
| catch (SAXException e) { |
| throw new TransletException(e); |
| } |
| } |
| |
| /** |
| * Put an attribute and its value in the start tag of an element. |
| * Signal an exception if this is attempted done outside a start tag. |
| */ |
| public void attribute(String name, final String value) |
| throws TransletException |
| { |
| final String patchedName = patchName(name); |
| final String localName = getLocalName(patchedName); |
| final String uri = getNamespaceURI(patchedName, false); |
| |
| final int index = (localName == null) ? |
| _attributes.getIndex(name) : /* don't use patchedName */ |
| _attributes.getIndex(uri, localName); |
| |
| if (!_startTagOpen) { |
| BasisLibrary.runTimeError(BasisLibrary.STRAY_ATTRIBUTE_ERR, |
| patchedName); |
| } |
| |
| if (index >= 0) { // Duplicate attribute? |
| _attributes.setAttribute(index, uri, localName, |
| patchedName, "CDATA", value); |
| } |
| else { |
| _attributes.addAttribute(uri, localName, patchedName, |
| "CDATA", value); |
| } |
| } |
| |
| public void characters(char[] ch, int off, int len) |
| throws TransletException |
| { |
| // System.out.println("SAXXMLOutput.characters ch = " + new String(ch, off, len)); |
| |
| try { |
| // Close any open start tag |
| if (_startTagOpen) { |
| closeStartTag(); |
| } |
| |
| Integer I = (Integer)_cdataStack.peek(); |
| if ((I.intValue() == _depth) && (!_cdataTagOpen)) { |
| startCDATA(ch, off, len); |
| } |
| else { |
| _saxHandler.characters(ch, off, len); |
| } |
| } |
| catch (SAXException e) { |
| throw new TransletException(e); |
| } |
| } |
| |
| public void endElement(String elementName) throws TransletException { |
| // System.out.println("SAXXMLOutput.endElement name = " + elementName); |
| try { |
| // Close any open element |
| if (_startTagOpen) { |
| closeStartTag(); |
| } |
| else if (_cdataTagOpen) { |
| closeCDATA(); |
| } |
| |
| _saxHandler.endElement(getNamespaceURI(elementName, true), |
| getLocalName(elementName), elementName); |
| |
| popNamespaces(); |
| if (((Integer)_cdataStack.peek()).intValue() == _depth){ |
| _cdataStack.pop(); |
| } |
| _depth--; |
| |
| } |
| catch (SAXException e) { |
| throw new TransletException(e); |
| } |
| } |
| |
| /** |
| * Send a namespace declaration in the output document. The namespace |
| * declaration will not be include if the namespace is already in scope |
| * with the same prefix. |
| */ |
| public void namespace(final String prefix, final String uri) |
| throws TransletException |
| { |
| if (_startTagOpen) { |
| pushNamespace(prefix, uri); |
| } |
| else { |
| if ((prefix == EMPTYSTRING) && (uri == EMPTYSTRING)) return; |
| BasisLibrary.runTimeError(BasisLibrary.STRAY_NAMESPACE_ERR, |
| prefix, uri); |
| } |
| } |
| |
| /** |
| * Send a processing instruction to the output document |
| */ |
| public void processingInstruction(String target, String data) |
| throws TransletException { |
| try { |
| // Close any open element |
| if (_startTagOpen) { |
| closeStartTag(); |
| } |
| else if (_cdataTagOpen) { |
| closeCDATA(); |
| } |
| |
| // Pass the processing instruction to the SAX handler |
| _saxHandler.processingInstruction(target, data); |
| } |
| catch (SAXException e) { |
| throw new TransletException(e); |
| } |
| } |
| |
| /** |
| * Declare a prefix to point to a namespace URI. Inform SAX handler |
| * if this is a new prefix mapping. |
| */ |
| protected boolean pushNamespace(String prefix, String uri) { |
| try { |
| if (super.pushNamespace(prefix, uri)) { |
| _saxHandler.startPrefixMapping(prefix, uri); |
| return true; |
| } |
| } |
| catch (SAXException e) { |
| // falls through |
| } |
| return false; |
| } |
| |
| /** |
| * Undeclare the namespace that is currently pointed to by a given |
| * prefix. Inform SAX handler if prefix was previously mapped. |
| */ |
| protected boolean popNamespace(String prefix) { |
| try { |
| if (super.popNamespace(prefix)) { |
| _saxHandler.endPrefixMapping(prefix); |
| return true; |
| } |
| } |
| catch (SAXException e) { |
| // falls through |
| } |
| return false; |
| } |
| |
| /** |
| * This method is called when all the data needed for a call to the |
| * SAX handler's startElement() method has been gathered. |
| */ |
| protected void closeStartTag() throws TransletException { |
| try { |
| _startTagOpen = false; |
| |
| final String localName = getLocalName(_elementName); |
| final String uri = getNamespaceURI(_elementName, true); |
| |
| // Now is time to send the startElement event |
| _saxHandler.startElement(uri, localName, _elementName, |
| _attributes); |
| |
| if (_cdata != null) { |
| final StringBuffer expandedName = (uri == EMPTYSTRING) ? |
| new StringBuffer(_elementName) : |
| new StringBuffer(uri).append(':').append(localName); |
| |
| if (_cdata.containsKey(expandedName.toString())) { |
| _cdataStack.push(new Integer(_depth)); |
| } |
| } |
| } |
| catch (SAXException e) { |
| throw new TransletException(e); |
| } |
| } |
| |
| protected void closeCDATA() throws SAXException { |
| // Output closing bracket - "]]>" |
| _saxHandler.characters(ENDCDATA, 0, ENDCDATA.length); |
| _cdataTagOpen = false; |
| } |
| |
| /** |
| * Utility method - pass a whole charactes as CDATA to SAX handler |
| */ |
| private void startCDATA(char[] ch, int off, int len) throws SAXException { |
| final int limit = off + len; |
| int offset = off; |
| |
| // Output start bracket - "<![CDATA[" |
| _saxHandler.characters(BEGCDATA, 0, BEGCDATA.length); |
| |
| // Detect any occurence of "]]>" in the character array |
| for (int i = offset; i < limit - 2; i++) { |
| if (ch[i] == ']' && ch[i + 1] == ']' && ch[i + 2] == '>') { |
| _saxHandler.characters(ch, offset, i - offset); |
| _saxHandler.characters(CNTCDATA, 0, CNTCDATA.length); |
| offset = i+3; |
| i += 2; // Skip next chars ']' and '>' |
| } |
| } |
| |
| // Output the remaining characters |
| if (offset < limit) { |
| _saxHandler.characters(ch, offset, limit - offset); |
| } |
| _cdataTagOpen = true; |
| } |
| } |
| |
